Method and design for optimum camera and display alignment of center of the room video conferencing systems
Systems for videoconferencing are designed for where people are seated around a video conferencing system. The systems include a camera so the far site can see the local participants and the systems include displays that show the far site. The displays are properly aligned with the cameras so that when people at the far site view the displayed images of the near site, it looks like they have eye contact with the near site. Obtaining the alignments of the camera and the displays to provide this apparent eye contact result requires meeting a series of different constraints relating to the various sizes and angles of the components and the locations of the participants.
1. A videoconferencing unit comprising:
a support structure adapted for placement on a surface;
a camera device coupled to the support structure, the camera device having a first height along a first line orthogonal to the surface;
one or more display surfaces; and
a first display surface of the one or more display surfaces, the first display surface having a top region, the top region having a second height along a second line parallel to the first line, the second height shorter than the first height,
wherein the camera device is configured to capture image data such that when eyes of a first participant are at a point within a predetermined distance from central portion of the first display surface, and a third line orthogonal to the display surface forms an acute angle with a fourth line from the camera device intersecting the point, the image data corresponding to the eyes is renderable to a second display surface so as to be perceivable as making eye contact with a second participant viewing the second display surface, and the acute angle so formed is greater than zero degrees and less than or equal to twenty degrees.
2. The videoconferencing unit of claim 1 , wherein the videoconferencing unit is co-located with the second display surface.
3. The videoconferencing unit of claim 1 , wherein the support structure is configured to be located on a table, and the point is a vertical distance from the table attainable in a seated position at the table.
4. The videoconferencing unit of claim 1 , wherein the first display surface is rectangular and a diagonal distance from one corner to another is greater than or equal to 23 inches and less than or equal to 27 inches.
5. The videoconferencing unit of claim 1 , wherein the camera device comprises one or more camera imagers configured to capture a panoramic image, the panoramic image on a plane perpendicular to the fourth line.
6. The videoconferencing unit of claim 1 , wherein the first display surface comprises a touch screen display.
7. The videoconferencing unit of claim 1 , wherein the support structure is configured to house an electronics module, the electronics module coupled to the camera device and configured to convert the image data into a videoconferencing format signal for transmission.
8. The videoconferencing unit of claim 1 , wherein the support structure comprises at least a base and one or more arms, the one or more arms coupled to at least one of the one or more display surfaces.
9. The videoconferencing unit of claim 1 , further comprising wherein the camera device is configured to receive image data from an axis aligned with an active display surface of the one or more display surfaces.
10. The videoconferencing unit of claim 1 , wherein the support structure is configured to enable adjustment of the first height of the camera device.
11. A method of simulating eye contact within a teleconferencing system, the method comprising:
providing a support structure for placement on a surface;
providing a camera device coupled to the support structure, the camera device having a first height along a first line orthogonal to the surface;
providing one or more display surfaces disposed in a regular perimeter around the camera device, the one or more display surfaces including a first display surface having a top region, the top region having a second height along a second line parallel to the first line, the second height shorter than the first height; and
capturing, using a the camera device, image data such that when eyes of a first participant are at a point within a predetermined distance from a central portion of the first display surface, and a third line orthogonal to the first display surface forms an angle with a fourth line from the camera device intersecting the point, the image data corresponding to the eyes of the first participant is renderable to a second display surface so as to be perceivable as making eye contact with a second participant viewing the second display surface, and the angle so formed is greater than zero degrees and less than or equal to twenty degrees.
12. The method of claim 11 , wherein the support structure is configured to be located on a floor, and the point is a vertical distance from the floor attainable in a seated position.
13. The method of claim 11 , wherein the support structure is configured to be located on a table, and the point is a vertical distance from the table attainable in a seated position at the table.
14. The method of claim 11 , wherein the first display surface is rectangular and a diagonal distance from one corner to another is greater than or equal to 23 inches and less than or equal to 27 inches.
15. The method of claim 11 , wherein the camera device comprises one or more camera imagers configured to capture a panoramic image, the panoramic image on a plane perpendicular to the fourth line.
16. The method of claim 11 , wherein the first display surface comprises a touch screen display.
17. The method of claim 11 , wherein the support structure is configured to house an electronics module, the electronics module coupled to the camera device and configured to convert the image data into a videoconferencing format signal for transmission.
18. The method of claim 11 , wherein the support structure comprises at least a base and one or more arms, the one or more arms coupled to at least one of the one or more display surfaces.
19. The method of claim 11 , wherein the camera device is configured to receive image data from an axis aligned with an active display surface of the one or more display surfaces.
20. The method of claim 11 , wherein the support structure is configured to enable adjustment of the first height of the camera device.
21. The method of claim 11 , wherein the angle so formed is greater than ten degrees and less than or equal to twenty degrees.
22. The method of claim 11 , wherein the angle so formed is greater than fifteen degrees and less than or equal to twenty degrees.
23. The videoconferencing unit of claim 1 , wherein the angle so formed is greater than ten degrees and less than or equal to twenty degrees.
24. The videoconferencing unit of claim 1 , wherein the angle so formed is greater than fifteen degrees and less than or equal to twenty degrees.